2.4x = x + 74.9 solve the equation 2.4x = x + 74.9 solve the equation

2.4x = x + 74.9 solve the equation 2.4x = x + 74.9 solve the equation

2.4x=x+74.9
2.4x-x=74.9
1.4x=74.9
x=74.9÷1.4
x=53.5

Solving equation 100-x = (80 + x) * 2-7

Remove the brackets and get 100-x = 2 / 7 * 80 + 2 / 7 * X
The results show that - X-2 / 7X = 160 / 7-100
It is reduced to - 9 / 7X = - 540 / 7
Divide both sides by - 9 / 7 to get x = 60

Solving equation (100-80-x) (100 + 10x) = 2160

(100-80-x)(100+10x)=2160
10000-8000-100X+1000X-800X-10X^2=2160
2000+100X-10X^2=2160
100X-10X^2=160
X = 2 or x = 8